[lxc-users] problems or only warning (!?) with lxc-clone

[Yonsy Solis]

On Fri, May 8, 2015 at 10:52 AM, Yonsy Solis <yonsy.s.p at gmail.com> 
wrote:
> 
> 
> On Fri, May 8, 2015 at 10:32 AM, Serge Hallyn 
> <serge.hallyn at ubuntu.com> wrote:
> 
>> what does 'ls -l /usr/bin/newuidmap /usr/bin/newgidmap' show?
> 
> mode :: ~ » ls -l /usr/bin/newuidmap /usr/bin/newgidmap              
>                                                                       
>                                                                       
>   1 ↵
> -rwsr-xr-x 1 root root 33688 Feb 16  2014 /usr/bin/newgidmap
> -rwsr-xr-x 1 root root 33688 Feb 16  2014 /usr/bin/newuidmap

this problem need more details from me.

1. I use btrfs for filesystem. every new container will get a subvolume 
generated (and in /etc/fstab i have user_subvol_rm_allowed in my 
filesystem to avoid problem when i remove the containers with 
lxc-destroy)

2. the warning/error (!?) only happens when i do "lxc-clone -s base 
clone" (snapshots) but not when i do "lxc-clone base clone" (normal 
clones). in both cases the uid==100000 and gid==100000.

3. if according to https://help.ubuntu.com/14.04/serverguide/lxc.html 
in "User namespaces", i set:

	sudo usermod -v 100000-200000 -w 100000-200000 lazarus

then i can clone snapshots without warning/error message, with the 
rootfs uid=100000 and gid=200000, but i can't remove (lxc-destroy) the 
cloned containers now, i need to do a btrfs subvol delete to remove the 
rootfs for this new cloned containers. In the previous settings i can 
lxc-clone snapshots and lxc-destroy the containers without problems 
(remember i have user_subvol_rm_allowed in my system), I need edit my 
/etcsubuid and /etc/subgid files to recover my previous state.

so, with this new conditions that i have, this is a "normal" warning or 
any error in process ?


Yonsy Solis